The summary of ANOVA 2x2
93
Communication material is more effective than Textbook material to teach writing.
b. Students having high learning motivation compared with ones having
low learning motivation Because the q
o
between rows 4.43 is higher than q
table
2.88, the difference of the means between rows is significant. It means that
there is a significant difference between students having high and low learning motivation in writing skill. The mean score of the students
having high learning motivation 77.4 is higher than the mean score of the students having low learning motivation 72.3. It can be
summarized that students having high learning motivation have better writing skill than the students having low learning motivation.
c. Comparing students having high learning motivation taught using
Computer Based Communication and Textbook material Because q
o
between columns for high learning motivation 9.30 is higher than q
table
3.00, the difference between the students having high learning motivation taught using Computer Based
Communication material and the students having high learning motivation taught using Textbook material is significant. It means that
the students having high learning motivation taught using Computer Based Communication material differ significantly from the students
having high learning motivation taught using Textbook material. The mean score of the students having high learning motivation taught using
94
Computer Based Communication material 82.33 is higher than of those taught using Textbook material 72.2. It can be concluded that
the Computer Based Communication material is more effective than Textbook material to teach writing for students who have high level of
learning motivation. d.
Comparing students having low learning motivation taught using Computer Based Communication and Textbook Material
Because q
o
between columns for low learning motivation 3.26 is higher than q
table
3.00, the difference between students having low learning motivation who are taught using Textbook material and
the students having low learning motivation who are taught using Computer Based Communication material is significant. The mean
score of students having low learning motivation who are taught using Computer Based Communication material 71.2 is lower than that of
taught using Textbook material 73.67. It means that Textbook material is more effective than Computer Based Communication
material to teach writing for the students who have low learning motivation.